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electromagnetic tester
1. A nondestructive test method for engineering materials, including magnetic materials, that use electromagnetic energy having frequencies less than those of visible light to yield information regarding the quality of the tested materials.
2. The theory of the propagation of energy by the combined electric and magnetic fields which are included in Maxwell's equations.

Maxwell's equations refers to the fundamental equations, developed by J.C. Maxwell, for expressing radiation mathematically and describing the condition at any point under the influence of varying electric and magnetic fields.

This entry is located in the following unit: electro-, electr-, electri- (page 42)